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Lesson 9.2 – Attaching End Plugs

Lesson 9.2 – Attaching End Plugs

IMPORTANT:  The below section on attached end plugs is to be completed after the system has been turned on once. Small pieces of plastic from punching holes from the sprinklers need to be flushed out of the system. Attaching the end plugs before flushing the system may clog sprinklers over time.  

             

The array piping infrastructure is now completed by attaching the end plugs (compression fittings) as shown above. Follow these steps to attach an end plug:

  1. The pipe should be cut squarely and not at an angle. The cut should be clean without significant burrs on end of the pipe. This will make assembly easier and prevents damage to the fitting gasket. The outer surface of the pipe should not have imperfections or indentations where the fitting makes contact with the pipe.
  2. Unscrew the blue ring nut from the end plug assembly and put it onto pipe as shown above (1st photo) followed by the white clamping ring. Make sure the clamping ring is positioned correctly, with the larger diameter facing the fitting.
  3. Insert the pipe in an axial direction into the fitting body (black part), pushing it past the gasket, until it touches the internal stop (2nd photo).
  4. Tighten the blue ring nut by hand until the black fitting body and the blue ring nut touch. There should be resistance to turning further. This supplies the compression needed to make a water-tight connection.

Make sure there are two clips attached near the edge of the panel (4th photo).